4. helphttp://www.answers.com/help , Usage Note: Many people commonly use help in the sense conveyed in the sentence Don't change it any more than you can help (that is, "any more than you have to"). Some grammarians condemn this usage on the grounds that help in this sense means "avoid" and therefore logically requires a negative. But the expression is a well-established idiom. See Usage Note at cannot.

http://encarta.msn.com/dictionary_/help.html , Word Usage Can't help butTraditionally, speakers and writers had a choice between, for example, can't help doing and can't [or cannot] but do. The latter (i.e., cannot but do) is now uncommon. Can't help but do is sometimes seen, but it is a redundant mixture of the two forms, and should be avoided in favor of can't help doing.http://www.answers.com/cannot , Usage Note: The idiomatic phrase cannot but has sometimes been criticized as a double negative, perhaps because it has been confused with can but. The but of cannot but, however, means "except," as it does in phrases such as no one but, while the but of can but has the sense only, as it does in the sentence We had but a single bullet left. Both cannot but and can but are established as standard expressions.•The construction cannot help is used with a present participle to roughly the same effect as cannot but in a sentence such as We cannot help admiring his courage. This construction usually implies that a person is unable to affect an outcome normally under his or her control. Thus, saying We could not help laughing at such a remark would imply that one could not suppress one's laughter.•The construction cannot help but probably arose as a blend of cannot help and cannot but; it has the meaning of the first and the syntax of the second: We cannot help but admire his courage. The construction has sometimes been criticized as a redundancy, but it has been around for more than a century and appears in the writing of many distinguished authors.•The expression cannot (or can't) seem to has occasionally been criticized as illogical, and so it is. Brian can't seem to get angry does not mean "Brian is incapable of appearing to get angry," as its syntax would seem to dictate; rather, it means "Brian appears to be unable to get angry." But the idiom serves a useful purpose, since the syntax of English does not allow a logical equivalent like Brian seems to cannot get angry; and the cannot seem to construction is so widely used that it would be pedantic to object to it. See Usage Notes at but, help.

8. tip/hinthttp://www.thefreedictionary.com/tip , tip 4n. 1. A small sum of money given to someone for performing a service; a gratuity.2. a. A piece of confidential, advance, or inside information: got a tip on the next race.b. A helpful hint: a column of tips on gardening.

11. first(ly), http://www.merriam-webster.com/dictionary/first[2],Main Entry: 2 first Function: adverb Date: before 12th century 1 a: before another in time, space, or importance b: in the first place —often used with of all c: for the first time2: in preference to something else : sooner

13. casinohttp://www.thefreedictionary.com/casino , 1. A public room or building for gambling and other entertainment.2. also cas•si•no A card game for two to four players in which cards on the table are matched by cards in the hand.3. A summer or country house in Italy.[Italian, diminutive of casa, house, from Latin.]Word History: The history of the word casino reveals a transformation from a cottage to a gambling palace. The source of our word, Italian casino, is a diminutive of casa, "house." Central to the transformation is the development of the senses of casino in Italian. The word was first applied to a country house and then came to be used for a social gathering place, a room or building where one could dance, listen to music, and gamble. This last pastime seems to have gained precedence over the others, at least as far as the development of the word is concerned, and casino took on the meaning "gambling establishment." These senses of the Italian word have all been borrowed into English, the sense "social gathering place" being recorded first in the 18th century, the sense "gambling establishment" first in 1851.